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macronucleus

Pronunciation: mak'ro-nu'kle-us

Definition:

  1. A nucleus that occupies a relatively large portion of the cell, or the larger nucleus where two or more are present in a cell.
  2. The larger of the two nuclei in ciliates, which governs vegetative metabolic functions and not reproduction.

Synonym(s): meganucleus

See Also: micronucleus2

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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